print("====>test1:\n")
message = "hello, would you like learn python \n"
print(message.title()) # first
print(message.upper()) # big
print(message.lower()) # little

print("====>test2:\n")
author = "albert einstein"
talk = '"A person who never made a mistake never tried anything new." \n'
print(author + " once said, " + talk)
print(author.title() + " once said, " + talk)


print("====>test3:\n")
author = "\n\talbert einstein\n\t"
print(author)
print(author.lstrip())
print(author.rstrip())
print(author.strip())
